Emergency Medicine
UMEM Educational Pearls

Search

Title: GI ultrasound case

Category: Ultrasound

Keywords: pocus; GI; intussusception (PubMed Search)

Posted: 7/6/2026 by Alexis Salerno Rubeling, MD (Updated: 7/11/2026)

Question

Pt with abdominal pain, nausea and vomiting. You ultrasound the intestines and find this:

Answer

The diagnosis is Intussusception.

Based on a recent systematic review and meta-analysis, POCUS has a sensitivity of 95.1% and a specificity of 98.1% for intussusception. 

Ileocolic intussusception can appear as:

  •  a >2.5 cm “target” sign in short axis
  • “sandwich” or pseudokidney sign in the long axis

References

Lin-Martore M, Boniface K. Gastrointestinal Ultrasound. In: Gottlieb M, Panebiano P, eds. Advanced Point-of-Care Ultrasound. Springer; 2025:193-214